Add elastic monitoring tools for benchmark, refs #32502

.flake8

.gitignore

.yamllint

Makefile

playbooks/bench.yml

requirements.yml

roles/elastic/defaults/main.yml

roles/elastic/handlers/main.yml

roles/elastic/meta/main.yml

roles/elastic/tasks/main.yml

roles/elastic/templates/apm-server.yml.j2

roles/elastic/templates/kibana.yml.j2

roles/metricbeat/defaults/main.yml

roles/metricbeat/handlers/main.yml

roles/metricbeat/tasks/main.yml

roles/metricbeat/templates/metricbeat.yml.j2

roles/metricbeat/templates/postgresql.yml.j2